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Tailoring the Methods of Conjugation and Characterization for a Replication-Competent, Live, Viral Vector
Elise Ishida1, Richard Dambra1, Sally Ye1
1Drug Metabolism and Pharmacokinetics (DMPK), Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Rd, Ridgefield, Connecticut 06877, United States.
Bioconjugate Chemistry
|July 2, 2025
Summary
Researchers optimized labeling and purification methods for virus particles, creating tool viruses for advanced gene therapies. This streamlines the development of viral vector therapies for patients.
Area of Science:
- Biotechnology
- Virology
- Gene Therapy
Background:
- Functionalizing virus particles is key for developing viral vector therapies.
- Labeling large, active virus particles presents purification and characterization challenges.
- Labeling and purification processes can affect viral biological activity.
Purpose of the Study:
- To present optimized methods for labeling, purifying, and characterizing virus particles.
- To adapt traditional biologics techniques for viral vector development.
- To generate tool viruses for nonclinical and clinical applications.
Main Methods:
- Adapted conjugation, purification, and characterization methods from biologics.
- Applied methods to replication-competent rhabdovirus VSV-GP-GFP.
- Confirmed purity and quantified the degree of labeling (DoL).
Main Results:
- Successfully tailored label/particle ratios for tool viruses.
- Demonstrated a comprehensive workflow for virus particle functionalization.
- Ensured purity and characterized the labeling degree.
Conclusions:
- Developed robust methods for viral vector functionalization.
- Facilitated the creation of tool viruses for therapeutic development.
- Aims to accelerate the delivery of viral vector therapies to patients.
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